Missing Arduino random() overloaded functions

[Kater--S]

In addition to the existing stdlib function long random(void) we need to implement the Arduino standard functions long random(long max) and long random(long min, long max). Same for void randomSeed(unsigned long).

See also here.

[Heltec-Aaron-Lee]

Added a long cubecell_random(int max) function, must rename or compile with GCC, there come with error (C langue already have a random function but without parameters).

[Kater--S]

Shouldn't C++ allow for overloading here? Or is this in the "C" domain? Arduino WMath.cpp has these definitions that rely only on an existing random(void) function:

long random(long howbig)
{
    if(howbig == 0) {
        return 0;
    }
    return random() % howbig;
}
long random(long howsmall, long howbig)
{
    if(howsmall >= howbig) {
        return howsmall;
    }
    long diff = howbig - howsmall;
    return random(diff) + howsmall;
}

I'm not an Arduino specialist, but couldn't we simply incorporate WMath.h/.cpp into the package? The same approach might apply for other Arduino standard functions.

[Kater--S]

Apart from this, using modulo (%) in conjunction with random number generation is not the best solution as it can affect the distribution of numbers. But that's how Arduino has implemented it ;-)